05000280/LER-1975-015, Updated LER 75-15/01T:on 750803,leaking Fitting on Overhead Gas Compressor B Resulted in Unplanned Release of Radioctive Matl from Site.Caused by Loose Fitting.Leaking Fitting Repaired

Updated LER 75-15/01T:on 750803,leaking Fitting on Overhead Gas Compressor B Resulted in Unplanned Release of Radioctive Matl from Site.Caused by Loose Fitting.Leaking Fitting Repaired

ML20087B941
Person / Time
Site:	Surry
Issue date:	09/03/1975
From:	Stallings C, Sweeney E VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20087B946	List: 05000280/LER-1975-015, Updated LER 75-15/01T:on 750803,leaking Fitting on Overhead Gas Compressor B Resulted in Unplanned Release of Radioctive Matl from Site.Caused by Loose Fitting.Leaking Fitting Repaired
References
647-S, LER-75-15-01T-01, LER-75-15-1T-1, NUDOCS 8403090400
Download: ML20087B941 (3)

LER-2075-015, Updated LER 75-15/01T:on 750803,leaking Fitting on Overhead Gas Compressor B Resulted in Unplanned Release of Radioctive Matl from Site.Caused by Loose Fitting.Leaking Fitting Repaired

Event date:
Report date:
2802075015R00 - NRC Website

text

rpdated Report of

. LICENSEE EVENT REPO A0-si-75-15 Previous Report Dated 5-15-75

, s CONTROL BLOCK:M l l l l l CLEASE PAINT ALL REGUlRED INFORMQTION) 1 6 LCENSEE tcENSE  :. INT NAVE LICENSE N.vii: T.;E et 01 7 89 vl AlS lP lS l1 l 14 l 0 l 0l-l0 l0 l 0 l 0 l 0 l-l0 l0 l l4 l1 l1l1l0J 16 25 2G 30 l0l1l 31 32 REPODT REPOAT CATEGOPY T3 ;; SOURCE DOCKET NLYEE4 EVENT DATE EU:247 CAYE o s cO*rT l P l0 l lT l y l 0i 5] 0l-l Ol2 lS l0 l l 0l 8l ol 31 7l5 l l 0 l 9 l 0l 3l7 l5 l 7 0 57 58 59 60 61 68 69 74 -75 63.

EVENT DESCR6PTION Q lDuring norcal operation a leaking fitting en "B" overhead gas conpressor resulted in l 7 89 83

@ lthe unplanned release of radioactive raterial fron the site. Aouropriate operational l 7 89 EJ

@ [ procedures were followed to isolate the release. The leaking fitting has teen re- l 7 89 BD

@ l paired. (AO-si-75-15) l 7 89 60 IN I i 7 89 re i 83 S f 5 TIM CAU5E CO* N ANT COV50 dNT CCOE CCCE COMPONENT CRCE W E' MAN *A ACILF*G VC'XCN O7 lMlBl [

7 89 10 11 lP lI lP l El xl xl 12 17 lA l 43 44

[Z l 9l 9 l 9 l 47 lYl 46 CAUSE DESCRiPTON OB lA locse fitting on "B" cverhead gas cc= pressor allowed airborne radioactive r.aterial l 7 89 63

[E l to leak into the gas stripper room and thus of f site via the ventilation vent systen. l 7 89 83 8I 7 89 63 I

Faticy Vi'-CO OF STAT A  % FOWER C mER STATUS C E O.ERY D 5 00 ."E Rf CEE3;*Cs s

W l1l 0l 0l lN/A l lAl bentilation Ven: McTiitor Alara l 7 8 9 10 12 13 44 45 46 83 FOAV C" ACivT7 CONTENT hE E45EO AVOUNT CE ACTMiY LGO AT C*. Os FE.!A3E 1^

d CF [JijPELEASE l 28o 5alCi T t

. l l Auxiliary Bldt. Vent to AtnOsphere l 7 8 9 10 11 44 45 00 PERSONNEL EXPOSURES NUv9ER TYPE DESCC.PTCN

• 8 loI ol of11 lZj 7 89 12 l N/A 13 l

60 PERSONNEL IN.'UP:ES P:UVSER DE5;GTON 8101 oi 0!11 12I 7 09 rua l 60 0FFSITE CONSEQUENCES ll l N/A l 7 89 60 LOSS OR DAMAGE TO FAC:LITY TY PT DE E".P PT ON 1

7 8S d 10 l N/A 60 l

PUBLCITY

@l 7 89 N/A 60 l

ADDITIONAL FACTORS tilf l See attached. l 7 89 8403090400 750903 00 PDR ADOCK 05000280 19 l .S PDR l

7 09 60~

. .qm E. M. Sweeney Jr. pggs,g. (8 0 '. ) 357-318'.

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.. . o UPDATED REPORT REl. EASE OF AIRBORNE RADI0 ACTIVE MATERIAL DUE TO OVERHEAD CAS COMPRESSOR LEAK ABNORMAL OCCURRENCE A0-SI-75-15 This information is provided in response to a request by the NRC on August 21, 1975.

Health physics personnel were notified that an unplanned release of air-

' borne radioactive material was in progress at 1815 on August 3, 1975. Personnel' began taking qualitative portable air sampics as soon as the radiation monitor alarm was annunciated. Quantitative air sampling results were initiated at .

approximately OS00 on August 4, 1975, with the decontamination building being the suspect area. Results were negative. The gas stripper room was sampled at 1100 hours0.0127 days <br />0.306 hours <br />0.00182 weeks <br />4.1855e-4 months <br /> with results being positive. It was then found that the ventilation vent sampler location for the radiation monitor indicating decontamination building was erroneous.

Tritium samples were not taken. Past experience had revealed that 1 131 is the limiting nuclide and; therefore, no tritium sampling was conducted.

It is not likely that li=its of Appendix B, Table I to 10 CFR 20 were exceeded in the auxiliary building. The highest actual measured concentrations of radionuclides listed in the basic report support this conclusion.

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VIItOINIA EI.ECTIZIC AND Powen Co>tr Axy R s cit n oNn.V1HOINI A 23261 g p,T*' ll 9 R:. J . U 7 ,

v7 SEP 121975 * $

September 8, 1975 -

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8 Mr. Norman C. Moseley, Director Serial No. 647-S '

Office of Inspection and Enforcement POSM/JTB:clu U.S. Nuclear Regulatory Commission Region 11 - Suite 818 Decket No. 50-280 230 Peachtree Street, Northwest License No. DPR-32 ,

Atlanta, Georgia 30303

Dear Mr. Moseley:

Pursuant to Surry Power Station Technical Specification 6.6.B.1, the Virginia Electric and Power Company hereby subnits forty (40) copies of supplementary information to Abnor=al Occurrence Report No. A0-SI-75-15.

This information was requested by the NRC.

The substance of this report has been reviewed by the Station Nuclear Safety and Operating Corenittee and will be placed on the agenda for the next meeting of the System Nucicar Safety and Operating Cc=:ittee.

Very truly yours, 6N7Ja4

.C. M. Stnllings Vice President-Pow 1r Supply and Production Operations Enclosures 40 copies of A0-S1-75-15 l cc: Mr. K. R. Goller Mr. Bryce P. Schofield l Director, Bureau of Industrial Hygiene Department of Health

'9724

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COPY SENT REGION-

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